Measurement and correlation of diffusion coefficients for CO/sub 2/ and rich-gas applications
A novel in-situ method for measuring molecular diffusion coefficients of CO/sub 2/ and other solvent gases in consolidated porous media at high pressure has been developed and is described. This technique is unique because visual observations and measurements of composition are not required. Experimental diffusion coefficients are reported for CO/sub 2/ in decane up to 850 psia (5.86 MPa), for CO/sub 2/ in 0.25 N NaCl brine up to 850 psia (5.86 MPa), and for ethane in decane up to 600 psia (4.14 MPa). All tests were conducted in Berea cores saturated with liquid phase at 100/sup 0/F (311 K). Cores were oriented both vertically and horizontally to assess the effects of gravity-induced convection on the observed mass transfer. The experimental diffusion coefficients obtained from this study have also been correlated, together with literature data for methane, ethane, and propane, as a function of liquid viscosity and thermophysical properties of the diffusing gases.
- Research Organization:
- Amoco Production, Tulsa, OK (US)
- OSTI ID:
- 6919981
- Journal Information:
- SPE (Society of Petroleum Engineers) Reserv. Eng.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Reserv. Eng.; (United States) Vol. 3:2; ISSN SREEE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
ALKANES
BRINES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON DIOXIDE INJECTION
CARBON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CORRELATIONS
DECANE
DIFFUSION
ENERGY SOURCES
ENHANCED RECOVERY
ETHANE
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GEOPHYSICS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
MEASURING METHODS
MEDIUM PRESSURE
METHANE
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS
OIL WELLS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
PROPANE
RECOVERY
RESERVOIR FLUIDS
RESERVOIR ROCK
ROCK-FLUID INTERACTIONS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STIMULATION
THERMODYNAMIC PROPERTIES
WELL STIMULATION
WELLS